CVE-2025-63917 XML external entity in n/a
Attackers can exploit XML bookmark import to read files, exfiltrate data, or cause denial of service via XXE in PDFPatcher.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-63917?
CVE-2025-63917 is a high-severity vulnerability in n/a, published on 17 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not restrict XML external entity (XXE) references. The application uses .NET's XmlDocument class without disabling external entity resolution, enabling attackers to: Read arbitrary files from the victim's filesystem, exfiltrate sensitive data via out-of-band (OOB) HTTP requests, perform SSRF attacks against internal network resources, or cause a denial of service via entity expansion attacks.
Weakness: CWE-611
Which versions are affected by CVE-2025-63917?
It affects 1 product.
Products include Cnblogs Pdfpatcher.
How do I fix CVE-2025-63917?
No fix has been published for CVE-2025-63917 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-63917 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63917 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-59qf-vrm9-q977.